Ssh整合开发介绍和简单的登入案例实现

Ssh整合开发介绍和简单的登入案例实现
一  介绍：
Ssh是strtus2-2.3.1.2+ spring-2.5.6+hibernate-3.6.8整合的开发，这是目前我的整合开发的使用技术和版本，使用的数据库为mySql。使用的开发工具是eclipse,eplipse的版本为Indigo Service Release 2
二  搭建环境
1．	首先要先引入struts2和sping和hibernate所需要的包
（1）struts2的包为：
struts-2.3.1.2\lib\ struts2-core-2.3.1.2.jar
struts-2.3.1.2\lib\ognl-3.0.4.jar
struts-2.3.1.2\lib\ xwork-core-2.3.1.2.jar
struts-2.3.1.2\lib\ freemarker-2.3.18.jar
struts-2.3.1.2\lib\commons-fileupload-1.2.2.jar
struts-2.3.1.2\lib\ commons-io-2.0.1.jar
struts-2.3.1.2\lib\commons-lang-2.5.jar
struts-2.3.1.2\lib\commons-logging-1.1.1.jar
struts-2.3.1.2\lib \struts2-json-plugin-2.3.1.2.jar
struts-2.3.1.2\lib \struts2-spring-plugin-2.3.1.2.jar
(2)引入hibernate的包
hibernate-distribution-3.6.8.Final\lib\required\*.jar  所有的jar包
hibernate-distribution-3.6.8.Final\lib\jpa\hibernate-jpa-2.0-api-1.0.1.Final.jar
hibernate-distribution-3.6.8.Final\ hibernate3.jar
(3)spring的包为：
	spring-framework-2.5.6\dist\ spring.jar
	spring-framework-2.5.6\lib\c3p0\c3p0-0.9.1.2.jar
	spring-framework-2.5.6\lib\aspectj\*.jar
	spring-framework-2.5.6\lib\j2ee\common-annotations.jar
	spring-framework-2.5.6\lib\log4j\log4j-1.2.15.jar
	spring-framework-2.5.6\lib\jakarta-commons\ commons-logging.jar
spring-framework-2.5.6\lib\cglib\cglib-nodep-2.1_3.jar  
spring-framework-2.5.6\lib\dom4j\dom4j-1.6.1.jar
2．	配置spring下所需要的文件
（1）首先配置spring所需要的xml文件
	我们在class下，即在src下创建一个applicationContext.xml的xml文件，文件的头文件因为要用到各种标签，所以我们在引入头文件的时候尽量引的比较多点，代码为:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
</beans>
（2）在xml中配置和数据库相关联，并用c3p0来配置数据库连接池
	<!-- 数据库的连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close">
		<property name="driverClass" value="com.mysql.jdbc.Driver"/>
		<property name="jdbcUrl"
	value="jdbc:mysql://localhost:3306/spring?useUnicode=true&characterEncoding=UTF-8" />
		<property name="user" value="root" />
		<property name="password" value="1234" />
		<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
		<property name="initialPoolSize" value="1" />
		<!--连接池中保留的最小连接数。 -->
		<property name="minPoolSize" value="1" />
		<!--连接池中保留的最大连接数。Default: 15 -->
		<property name="maxPoolSize" value="300" />
		<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
		<property name="maxIdleTime" value="60" />
		<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
		<property name="acquireIncrement" value="5" />
		<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
		<property name="idleConnectionTestPeriod" value="60" />
	</bean>

当然，这样所写的可以在一个properties中读取。读取外部文件在xml中的使用为：
<!-- 读取外部的文件 -->
<context:property-placeholder location="jdbc.properties" />

(3)配置sessionFactory工厂，相当于是hibernate.cfg.xml里面的配置
	<!-- sessionFactory工厂 -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<!-- 注入数据源 -->
		<property name="dataSource" ref="dataSource"></property>
		<!-- hibernate映射文件的引入 -->
		<property name="mappingResources">
			<list>
				<value>cn/csdn/hr/s2sh/domain/Admin.hbm.xml</value>
			</list>
		</property>
		<!-- 配置hibernate属性的设置 -->
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
			</props>
		</property>
	</bean>
3．配置struts2.xml中需要的内容
(1)配置基本的struts2.xml 
 <!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
	<!--使用spring创建管理struts2的action操作 -->
	<constant name="struts.objectFactory" value="spring"/>
	<include file="struts-admin.xml"></include>
</struts>
注：其中include是引入的文件，一下的语句是非常重要的：
<constant name="struts.objectFactory" value="spring"/>，它是struts2和spring的连接的关键
(2)引入的struts-admin.xml文件，意在检测并作出一个简单的登入的实现
  <!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
	<package name="admin" extends="struts-default" namespace="/csdn">
		<!-- class的名称  等于spring中action配置文件中的id名称 -->
		<action name="loginAdmin" class="adminAction" method="login">
			<result name="success">../index.jsp</result>
		</action>
	</package>
</struts>
4．	Hibernate.cfg.xml中的内容可以省略，它已经在spring中的xml中配置了
5．搭建层之间的关系
(1)首先是domain，包为cn.csdn.hr.s2sh.domain,我们以admin为例
属性为id和name和pass
封装的实体类为:
package cn.csdn.hr.s2sh.domain;
import java.io.Serializable;
public class Admin implements Serializable {
	private static final long serialVersionUID = 1L;
	private Integer id;
	private String name;
	private String pass;

	public Admin() {
		super();
		// TODO Auto-generated constructor stub
	}

	public Admin(Integer id, String name, String pass) {
		super();
		this.id = id;
		this.name = name;
		this.pass = pass;
	}

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getPass() {
		return pass;
	}

	public void setPass(String pass) {
		this.pass = pass;
	}

	@Override
	public String toString() {
		return "Admin [id=" + id + ", name=" + name + ", pass=" + pass + "]";
	}
}
(2)在同一个包下的实体类的映射文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
                                   "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="cn.csdn.hr.s2sh.domain">
	<class name="Admin" table="admin">
		<id name="id" column="id">
			<generator class="native"></generator>
		</id>
		<property name="name" column="name"></property>
		<property name="pass" column="pass"></property>
	</class>
</hibernate-mapping>

(3)创建dao层，创建的包名为cn.csdn.hr.s2sh.dao，创建的接口名为AdminDao,类名为AdminDaoImpl
下面是创建的接口 AdminDao.java
package cn.csdn.hr.s2sh.dao;

import java.util.List;

import cn.csdn.hr.s2sh.domain.Admin;

public interface AdminDao {
	public Admin login(final String name,final String pass);
}

创建的类为AdminDaoImpl.java
package cn.csdn.hr.s2sh.dao;
import java.sql.SQLException;
import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import cn.csdn.hr.s2sh.domain.Admin;

@SuppressWarnings("unchecked")
public class AdminDaoImpl extends HibernateDaoSupport implements AdminDao {
	public Admin login(final String name, final String pass) {

		return (Admin) this.getHibernateTemplate().execute(
				new HibernateCallback() {

					public Object doInHibernate(Session session)
							throws HibernateException, SQLException {
						// TODO Auto-generated method stub

						Object obj = session
								.createQuery(
										"from Admin where name=:name and pass=:pass")
								.setString("name", name)
								.setString("pass", pass).uniqueResult();
						return obj;
					}
				});
	}
}

(4)创建service层，创建的包名为cn.csdn.hr.s2sh.service
创建的AdminService.java接口
package cn.csdn.hr.s2sh.service;

import cn.csdn.hr.s2sh.dao.AdminDao;


public interface AdminService extends AdminDao{

}
创建的AdminServiceImpl.java
package cn.csdn.hr.s2sh.service;
import java.util.List;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionTemplate;
import cn.csdn.hr.s2sh.dao.AdminDao;
import cn.csdn.hr.s2sh.domain.Admin;
public class AdminServiceImpl implements AdminService {

	private AdminDao adminDao;
	public void setAdminDao(AdminDao adminDao) {
		this.adminDao = adminDao;
	}
	public Admin login(String name, String pass) {
		// TODO Auto-generated method stub
		return adminDao.login(name, pass);
	}
}


6.创建访问struts2的时候的action，我们把action放到一个bean-action.xml中
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<!-- 创建struts2中的action -->
	<!-- 配置admin的action -->
	<bean id="adminAction" class="cn.csdn.hr.s2sh.action.AdminAction"
		scope="prototype">
		<property name="adminService" ref="adminServiceImpl"></property>
	</bean>
</beans>

而ref的adminServiceImpl是在bean-service.xml中
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<!-- admin的业务操作 -->
	<bean id="adminServiceImpl" class="cn.csdn.hr.s2sh.service.AdminServiceImpl">
		<property name="adminDao" ref="adminDaoImpl"></property>
	</bean>
</beans>

上面的ref是adminDaoImpl，在beans-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">


	<!-- hibernatedao的模板类 HibernateDaoSuppor 抽象类不可以实例化 加上abstract="true" -->
	<bean id="hibernateDaoSupport"
		class="org.springframework.orm.hibernate3.support.HibernateDaoSupport"
		abstract="true">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>
	<!-- admin的dao对象 -->
	<bean id="adminDaoImpl" class="cn.csdn.hr.s2sh.dao.AdminDaoImpl"
		parent="hibernateDaoSupport" />
</beans>

然后我们把上面的三个beans.xml导入到applicationContext.xml中
<!-- 导入其他的配置文件 -->
<import resource="beans-dao.xml" />
<import resource="beans-service.xml" />
<import resource="beans-action.xml" />

7．配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>s2sh</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>

	<!-- 指定spring的配置文件，默认从web根目录寻找配置文件，我们可以通过spring提供的classpath:前缀指定从类路径下寻找 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applic*.xml</param-value>
	</context-param>
	<!-- 对Spring容器进行实例化 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- struts2 的配置 -->
	<filter>
		<filter-name>struts2</filter-name>
		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- 配置 使用spring解决hibernate因session关闭导致的延迟加载例外问题 -->
	<filter>
		<filter-name>OpenSessionInViewFilter</filter-name>
		<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
		<init-param>
			<!-- 指定org.springframework.orm.hibernate3.LocalSessionFactoryBean在spring配置文件中的名称,默认值为sessionFactory.如果LocalSessionFactoryBean在spring中的名称不是sessionFactory,该参数一定要指定,否则会出现找不到sessionFactory的例外 -->
			<param-name>sessionFactoryBeanName</param-name>
			<param-value>sessionFactory</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>OpenSessionInViewFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- 使用spring解决struts2的中文乱码的问题 -->
	<filter>
		<filter-name>encoding</filter-name>		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>

8．我们来做一个简单的登入，使用的jsp页面为：
<body>
	<div>
		<form action="/s2sh/csdn/loginAdmin.action" method="get">
			用户名：<input type="text" name="admin.name"/><br/>
			密码：<input type="password" name="admin.pass"/><br/>
			<input type="submit" value="登入"/>
			<input type="reset" value="重置"/>
		</form>
	</div>
	<div>
		用户名为:${admin.name}
	</div>
</body>

访问到的action的处理为：
package cn.csdn.hr.s2sh.action;
import cn.csdn.hr.s2sh.domain.Admin;
import cn.csdn.hr.s2sh.service.AdminService;
import com.opensymphony.xwork2.ActionSupport;
public class AdminAction extends ActionSupport {
	private static final long serialVersionUID = 1L;

	private AdminService adminService;

	private Admin admin;

	public Admin getAdmin() {
		return admin;
	}

	public void setAdmin(Admin admin) {
		this.admin = admin;
	}

	// 注入
	public void setAdminService(AdminService adminService) {
		this.adminService = adminService;
	}

	public String login() {
		System.out.println("用户名:" + admin.getName());
		admin = adminService.login(admin.getName(), admin.getPass());
		return SUCCESS;
	}
}